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Investigate Braking Distance: Physics Experiment Setup and Analysis

Explore the correlation between initial speed and braking distance in this physics experiment. Set up the equipment, measure speed, and analyze results. Label key points and understand the concept. Homework includes related problems for practice.

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Investigate Braking Distance: Physics Experiment Setup and Analysis

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  1. Do Now 3 minutes! • Draw the equipment set-up used for Investigate1-5. Include the position of the cart after rolling down the ramp. • Label the point where initial speed was measured. • Label the braking distance.

  2. Homework :D • Physics to Go TURN IT IN

  3. Objectives 1-5 • Agenda • Do Now 5 • Braking Distance 20 • Reflecting 5 • P.E.Q 12 • WDY Think Now? 8 We are learning… • Braking distance is dependent on the negative acceleration of the vehicle (brakes, road surface) and reaction time (d=v2/2a) We will be successful when we can… • Plan and carry out an experiment to relate braking distance to initial speed • Determine braking distance • Examine accelerated motion

  4. Physics Talk Problem #5 A skateboarder has an initial velocity of 2 m/s and can brake within 10 m. Explain how this graph represents the square relationship between initial velocity and braking distance.

  5. Physics Talk d = vi2 -2a

  6. Physics Talk Problem #1 If a motorcycle traveling at 3 m/s with a negative acceleration of 2 m/s2, what is the braking distance traveled before the motorcycle comes to a stop?

  7. Physics Talk Problem #2 Now suppose the speedis doubled to 6 m/s…

  8. Physics Talk Problem #3 Now suppose the speedis tripled to 9 m/s…

  9. Physics Talk Problem #4 Now suppose the speedis halved to 1.5 m/s…

  10. Physics Talk Problem #5 Now suppose the speedis quartered to 0.75 m/s…

  11. Reflecting (page 87)

  12. P.E.Q. (page 87) 12 minutes!

  13. WDYTN? (page 86) 8 minutes! What factors must you consider to determine if you will be able to stop in the distance between you and the animal to avoid hitting it? • 4 complete sentences • Initial Speed | Breaking Distance • Positive or negative acceleration?

  14. Checking Up 4 minutes!

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